Textile sliver coiling means



Oct. 10, 1967 J. J VARGA TEXTILE SLIVER COILING MEANS 2 Sheets-Sheet,1

Filed Jan. 30, 1967 Jll 1967 J. M. J. VARGA TEXTILE SLIVER COILING MEANS2 Sheets-Sheet 2 Filed Jan. 30, 1967 United States Patent 3,345,703TEXTILE SLIVER COILING MEANS John Maximilian Jules Varga, Toronto,Ontario, Canada, assignor to Carding Specialists (Canada) Limited,Toronto, Ontario, Canada, a corporation of Canada Filed Jan. 30, 1967,Ser. No. 612,436 Claims priority, application Great Britain, Feb. 4,1966, 4,959/ 66 6 Claims. (Cl. 19--159) ABSTRACT OF THE DISCLOSURE Atextile sliver planetary coiling mechanism in which an uncoiled sliveris fed between driven calender rollers, mounted in a stationaryposition, into a feed tube which leads the sliver down to a pair ofdriven co-operating feed belts arranged to pass the sliver to a feedopening. The belts are rotated by gearing in a circular path about acentral axis at a slow speed with the feed tube, and the belts arefurther rotated about their inlet end about a second ofi-set axis at afaster speed to deposit a plurality of sliver coils progressively incircles into a stationary can.

This invention relates to methods of, and mechanism for, coiling textileslivers in cans.

In some cases top mechanism coils a sliver into a slowly rotating canbut this invention is concerned with an arrangement of planetary coilingwhich performs the whole of the coiling operation and deposits thecoiled sliver progressively into a stationary can. The latterarrangement has been developed mainly for use with high speed cardingmachinery.

Although what is considered to be efficient mechanism has beendeveloped, so far the construction has been rather expensive and it is amain object of the present invention to provide an improved method andmechanism of a less costly type.

Acording to the present invention there is provided a method of coilinga textile sliver into a can, consisting in arranging a sliver to passfrom a pair of driven calender rollers mounted in a stationary positioninto and through a feed channel capable of rotating about a verticalaxiswhich passes through the nip of said rollers and channel inlet,arranging the outlet end of said channel to deposit the sliver between apair of superposed endless driven belts capable of rotating bodily aboutthe same axis as the channel, causing such belts to direct the sliverlongitudinally thereof and radially outwardly from said channel to theirdelivery end, arranging the feed belts to be also rotatable aboutanother vertical axis adjacent their inlet ends, and causing the wholeassembly to rotate slowly about the first axis and the belts at a fasterspeed about their own axis.

The invention also includes sliver coiling mechanism of the depositingtype incorporating a mounting means for a pair of hollow hubbedhorizontally disposed members mounted to rotate both about a commonvertical axis which is that of the first member with the second memberrotatably carried by the first member and capable of rotation its ownoffset vertical axis, a pair of superposed endless feed belts mounted inthe structure of the second member and radially of its axis, a drivingshaft with gearing to drive the first member at a slow speed and a trainof gears to drive the second member at a faster speed, said lattergearing being rotatable about the aforesaid first axis, gearing to drivethe belt-s from said first member, a sliver feed tube leading from asliver inlet on said first axis to at least adjacent the otf-set axis ofthe second member and feed ends of the belts, and a 3,345,703 PatentedOct. 10, 1967 pair of calender rollers mounter in a stationary positionabove the sliver inlet to the feed tube.

The invention will now be more particularly described with reference tothe accompanying drawings, in which:

FIG. 1 is a plan view from above of the coiler mechanism; and

FIG. 2 is a sectional side view of the mechanism.

In the illustrated embodiment of this invention, the coiling mechanismincludes a cover 1 furnished with a circular opening 2 in its base and abearing 3 in the top bridge member 4, said bearing being in axialalignment with the bottom opening 2. This member 4 is carried by atubular support 5 at one end and a tubular column 6 at the other end,which column houses the driving shaft 7. The hollow hub 8 of a largegear wheel 9 (forming a first rotary member A) is arranged to rotate insaid top bearing with the base 10, which is suspended from the gearwheel 9 by bolts 11, rotatable in said bottom opening 2 of the housing.There is a circular opening 12 in the base 10 with a bearing 13 in thegear wheel 9. This bearing is in axial alignment with the bottom opening12 and their axis 14 is oif-set radially from the axis 15 of the hollowhub 8. In the bearing 13 there is mounted a hollow hub member 16provided with an integral gear 17 (forming a second rotary member 13)and a mounting bracket 18 to which a base 19 is attached. This bracket13 incorporates a pair of feed belts 20, 21 mounted on pulleys 22, 23,24 and 25, respectively and arranged to be in running engagement withone another. The top belt 20 is oif-set longitudinally so as to providean upwardly facing entrance 26 between the forward pulleys 22, 24 forthe entry of a sliver when it passes down the delivery tube 27 which ismounted in the wall of the hollow hub 8 at its upper end and in thehollow member 16 at its lower end. Thus the sliver delivered to thebelts will be carried along between them and out through an opening 28provided in the base 19. The base 19 may be displaceable, or include adisplaceable part, to give access to the interior of the housing 18particularly for cleaning purposes. These belts may be driven byconnecting the two forward pulleys 22 and 24 by gear pinions.

29 and driving the shaft 30 by meshed bevel gears 31, upright shaft 32and top pinion 33 which is in mesh with the gear ring 34 carried by thegear Wheel 9. Belt cleaning means may be mounted to press against thebelts 20, 21.

Both the first and second members A and B require to be driven with thesecond member B rotating about its own axis 14 at a faster speed than itrotates with the first member A about the first axis 15. Thus thevertical driving shaft 7 is furnished with a gear pinion 54 in mesh withatop gear wheel 35 which drives a bottom pinion 36 which meshes with thegear wheel 9 to drive this first member A at a desired slow speed. Thefaster speed of the second member B is achieved by the upper gear wheel35 meshing with the first of a pair of engaged horizontal gear wheels 37and 38 with the second gear wheel in mesh with a double sun wheel 39,40, mounted to rotate about the axis 15 of the hollow hub 8 of the firstmember A. The bottom gear 40 of the sun Wheel is arranged in mesh withthe gear wheel 17 on top of the hollow hub member 16 of the secondmember B carrying the feed belts 20, 21. Whilst the double sun wheel 39,40 is positioned correctly in FIG. 1 it is out of position in FIG. 2 forillustrative purposes. Thus from a common driving shaft 7 in the colume6 the two members A and B can be driven by gearing in a simple mannerand a drive furnished to the feed belts.

The above sliver feed tube 27 is straight (it may be curved or sinuous)in its inclined length for the free movement of a sliver therethrough.Said tube has its inlet and in the inlet 42 to the hollow hub 8 of thefirst member, passes through the wall of said hub and has its bottomoutlet end immediately above the nip of the front belt rollers 22, 24,and adjacent the aforesaid second axis 14. A pair of driven calenderrollers 43 are associated with the aforesaid mechanism and located in astationary position immediately above the inlet end of the feed tube 27.

' The calender rollers are driven from the drive for the coilermechanism and conveniently a secondary vertical shaft 44 is driven fromthe aforesaid gear wheel 37 by a pinion 45. This secondary shaft drivesa horizontal shaft 46 through bevel gears 47 in a top housing 48. Thishorizontal shaft drives one of the calender rollers 43 direct with theother roller geared thereto through a pair of gears 49. One or bothrollers may be mounted to be displaceable about the axis of the shaft 44and/or mounted for separation.

The cover 1 as shown comprises a fixed botom ring and a cover which isdivided into two halves hinged together on the pin 50 carried by the topbridge member 4.

In smaller constructions the bridge member 4 can be reduced to the formof a half cross member projecting from the column 6. Alternatively themounting member may be in the form of a spider.

It is considered the invention solves a problem in the coiling ofslivers in that it provides relatively much cheaper mechanism of aplanetary type. Hitherto planetary type coiling mechanisms have usedlarge peripheral bearings which for high speed coiling have to be of ananti-friction type. Large diameter ball or roller bearings are veryexpensive and in order to try and reduce the expense and delays insupply, special large bearings have been fabricated with an assembly ofwire ring ball races for the ball bearings.

The present invention embodies a feed belt principle and the use ofnormal standard ball bearings. This is the main reason why thisinvention will be cheaper and easier to make than other types. With aknown flat type coiler, the large bearing has to be of the same diameteras the can. With our invention, the size of bearings to be used areentirely independent of the can size or the eccentricity of theplanetary motion. The size is controlled only by normal mechanicalfeatures such as loading, constructional design or the like.

Moreover, the bearings of the sliver feed belt rollers may all bemounted on a trap door which so that when it is allowed to open, thewhole belt mechanism will be exposed for cleaning purposes. Thisarrangement need not be used with the illustrated and describedconstruction of a skeleton mounting member (bridge, cross arm or spider)as when the cover 1 is displaced there is easy access to the coilermechanism.

This invention is confined to so-called depositing type coilers whereinthe sliver is drawn, with or without a drafting action, through themechanism and deposited into a can.

What I claim is:

1. Textile sliver planetary coiling mechanism of the depositing type,comprising mounting means, a first rotary member mounted by means of ahollow hub in a standard free running bearing carried by said mountingmeans, a second rotary member mounted by means of a hollow hub in astandard free running bearing carried by the first member, the rotaryaxis of said second member being off-set from the axis of the firstmember, gear means for driving the first member from a driving shaft anda train of gears between said gear means and the hollow hub of thesecond member, a hollow sliver feed element leading from the interior ofthe first member hub to the interior of the second member hub, a pair ofendless sliver feed belts forming part of the second member andextending radially from the off-set axis of the second member to asliver delivery opening, gearing to drive said belts from said firstmember, and a pair of calender rollers mounted in a stationary positionabove the sliver inlet to the hollow feed element, said gearing beingarranged to cause slow rotation of both the first and second membersabout the first axis and a faster rotation of the second member aboutthe off-set axis.

2. Textile sliver coiling mechanism according to claim 1, wherein thesliver feed element comprises a tube with its open top end disposed onthe axis of the first member, said tube passing through the wall of thehub of the first member down and into the hub of the second member, theopen delivery end of said tube terminating at least adjacent the rotaryaxis of said second member and immediately above the entry to the nip ofthe feed belts.

3. Sliver coiling mechanism according to claim 1, wherein the firstrotary member and the gearing are carried by said mounting means, saidmounting means incorporating standard ball bearing means for the hollowhub of said first rotary member and the mounting means being such as togive easy access to the mechanism below it.

4. Sliver coiling mechanism according to claim 1, wherein the firstrotary member comprises a large diameter gear wheel with an upstandinghollow mounting hub, said gear wheel carrying standard ball bearingmountings for the second rotary member and also for part of the geartrain which drives it, one gear of said train being mounted to rotatefreely on the hub of the first member.

5. Sliver coiling mechanism according to claim 1, wherein the sliverfeed belts carried by the second rotary member are each mounted on apair of pulleys with the upper pair spaced away from the other pair tooffset the upper belt longitudinally, the front pulley of the upper beltand the rear pulley of the lower belt being arranged to press the twobelts together to run in an upwardly inclined plane between saidpulleys, the front pair and rear pair of spaced pulleys providing anupwardly facing sliver feed inlet and a downwardly facing deliveryoutlet.

6. Sliver coiling mechanism according to claim 1, wherein the calenderrollers are carried by the mounting means for the first member in abearing to be normally in a stationary position but capable of beingswung horizontally out of an operative position, and drive means for therollers connected to the drive means for the members.

References Cited UNITED STATES PATENTS 2,975,489 3/1961 Whitehurst 19-159 FOREIGN PATENTS 579 1871 Great Britain I9'-159 562,866 12/1957Belgium 19 159 1,346,200 11/1963 France 19-159 MERVIN STEIN, PrimaryExaminer.

I. C. WADDEY, JR., Assistant Examiner.

1. TEXTILE SLIVER PLANETARY COILING MECHANISM OF THE DEPOSITING TYPE,COMPRISING MOUNTING MEANS, A FIRST ROTARY MEMBER MOUNTED BY MEANS OF AHOLLOW HUB IN A STANDARD FREE RUNNING BEARING CARRIED BY SAID MOUNTINGMEANS, A SECOND ROTARY MEMBER MOUNTED BY MEANS OF A HOLLOW HUB IN ASTANDARD FREE RUNNING BEARING CARRIED BY THE FIRST MEMBER, THE ROTARYAXIS OF SAID SECOND MEMBER BEING OFF-SET FROM THE AXIS OF THE FIRSTMEMBER, GEAR MEANS FOR DRIVING THE FIRST MEMBER FROM A DRIVING SHAFT ANDA TRAIN OF GEARS BETWEEN SAID GEAR MEANS AND THE HOLLOW HUB OF THESECOND MEMBER, A HOLLOW SLIVER FEED ELEMENT LEADING FROM THE INTERIOR OFTHE FIRST MEMBER HUB TO THE INTERIOR OF THE SECOND MEMBER HUB, A PAIR OFENDLESS SLIVER FEED BELTS FORMING PART OF THE SECOND MEMBER ANDEXTENDING RADIALLY FROM THE OFF-SET AXIS OF THE SECOND MEMBER TO ASLIVER DELIVERY OPENING, GEARING TO DRIVE SAID BELTS FROM SAID FIRSTMEMBER, AND A PAIR OF CALENDER ROLLERS MOUNTED IN A STATIONARY POSITIONABOVE THE SLIVER INLET TO THE HOLLOW FEED ELEMENT, SAID GEARING BEINGARRANGED TO CAUSE SLOW ROTATION OF BOTH THE FIRST AND SECOND MEMBERSABOUT THE FIRST AXIS AND A FASTER ROTATION OF THE SECOND MEMBER ABOUTTHE OFF-SET AXIS.